4
7. Stepwise Thinking
Click the correct answer.
70 - 6 (4 - 2) +12 =
.
90
70
40
146
12 / 3 * 4 =
.
16
12
30
18
FMGB, HMIB, JMKB,
, NMOB.
PMQB
LMNB
MMNB
LMMB
4 , 16 , 64 , 256 ,
.
1022
1024
1030
1056
The red ribbon is shorter than the purple ribbon but longer than the grey ribbon, hence
is the longest ribbon.
red
grey
purple
black
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